Finnish power solutions firm Wärtsilä has secured a contract to supply 412 MW of engine power for a new hyperscale data centre in Ohio. The order calls for 40 Wärtsilä 34SG spark‑gas engines delivering a combined 412 MW of power [1][2].
The deal matters because data centres are among the fastest‑growing electricity users in the U.S., and Wärtsilä’s spark‑gas technology promises flexible, efficient generation that can complement renewable sources [2] – a key factor as operators seek to reduce emissions while maintaining reliability.
Not all reports agree on the details. An MSN article describes a separate U.S. power‑plant order of 24 Wärtsilä 50SG engines totaling 429 MW, suggesting the Ohio contract may be part of a broader push by the company into American energy markets [3]. The discrepancy highlights that the 412 MW figure applies specifically to the Ohio data‑centre project, while the 429 MW order relates to a different facility.
If the Ohio installation proceeds as announced, it will add a sizable block of on‑site generation capacity, allowing the data centre to operate independently of grid constraints during peak demand. This could encourage other large‑scale tech projects to consider on‑site spark‑gas solutions, especially in regions where grid reliability is uneven.
Wärtsilä’s expansion into the U.S. data‑centre sector aligns with its broader strategy to diversify beyond traditional maritime and offshore markets. By positioning its 34SG engines as a clean‑energy alternative, the company aims to capture a share of the growing demand for resilient, low‑carbon power across multiple industries.
“Wärtsilä will deliver 40 34SG spark‑gas engines to power the Ohio data centre.”
The Ohio contract shows that major data‑centre operators are looking beyond grid power to on‑site, low‑carbon solutions. Wärtsilä’s entry into this niche could accelerate the adoption of spark‑gas engines for critical infrastructure, potentially reshaping how large tech facilities meet reliability and sustainability goals in the U.S.
